Created attachment 333146 [details, diff] fix BadMatch error by removing XSetInputFocus() call This bug described at https://bugs.freedesktop.org/show_bug.cgi?id=36601 I'm also using fluxbox: $ spicec -h 127.0.0.1 -p 5900 Error: x error on display :0 error BadMatch (invalid parameter attributes) minor 0 request X_SetInputFocus This issue happens both on current 0.11.3 and latest 0.12.0. The "patch" attached.
Upstream recommends you try remote-viewer from the virt-viewer package instead since spicy is not supported by them.
Upstream will not fix this issue - I don't see a way to make this patch compatible with the intended behavior.